Question

英语选择题！！！来帮忙

Answer 1

C
already是完成时的标志。
你可以把句子变成这样。My
brother---------there
already.
together
with
some
of
his
old
friends是插入语。可以不看。这样你会了吧。

Answer 2

C因为：你可以将together
with
some
of
his
old
friends换到there
already
之后，你就会发现主语只有My
brother，所以用has
been。